[icd] Removed ICD related methods (former SED) from NoThreadImpl

There are several methods related to ICD (former SED) used for
setting expected communication intervals. Currently they are
implemented only for Thread devices and for Wi-Fi the
implementation returns unsupported feature through NoThreadImpl.
Including this sleep intervals could be useful for some low power
Wi-Fi modes too.

Changes:
* Removed methods implementation from NoThread impl. Now after
enabling CHIP_DEVICE_CONFIG_ENABLE_SED (I believe it should be
renamed to ICD in the future), the implementation will have to
be provided by the proper platform.
* Implemented methods for nrfconnect Wi-Fi platform.

examples/light-switch-app/nrfconnect/Kconfig

@@ -40,6 +40,13 @@ config CHIP_ENABLE_SLEEPY_END_DEVICE_SUPPORT
 
 endif # NET_L2_OPENTHREAD
 
+if CHIP_WIFI
+
+config NRF_WIFI_LOW_POWER
+	default y
+
+endif # CHIP_WIFI
+
 rsource "../../../config/nrfconnect/chip-module/Kconfig.features"
 rsource "../../../config/nrfconnect/chip-module/Kconfig.defaults"
 source "Kconfig.zephyr"

examples/lock-app/nrfconnect/Kconfig

@@ -52,6 +52,13 @@ config CHIP_ENABLE_SLEEPY_END_DEVICE_SUPPORT
 
 endif # NET_L2_OPENTHREAD
 
+if CHIP_WIFI
+
+config NRF_WIFI_LOW_POWER
+	default y
+
+endif # CHIP_WIFI
+
 rsource "../../../config/nrfconnect/chip-module/Kconfig.features"
 rsource "../../../config/nrfconnect/chip-module/Kconfig.defaults"
 source "Kconfig.zephyr"

src/include/platform/internal/GenericConnectivityManagerImpl_NoThread.h

@@ -50,9 +50,6 @@ class GenericConnectivityManagerImpl_NoThread
     bool _IsThreadApplicationControlled(void);
     ConnectivityManager::ThreadDeviceType _GetThreadDeviceType(void);
     CHIP_ERROR _SetThreadDeviceType(ConnectivityManager::ThreadDeviceType deviceType);
-    CHIP_ERROR _GetSEDIntervalsConfig(ConnectivityManager::SEDIntervalsConfig & intervalsConfig);
-    CHIP_ERROR _SetSEDIntervalsConfig(const ConnectivityManager::SEDIntervalsConfig & intervalsConfig);
-    CHIP_ERROR _RequestSEDActiveMode(bool onOff);
     bool _IsThreadAttached(void);
     bool _IsThreadProvisioned(void);
     void _ErasePersistentInfo(void);
@@ -115,26 +112,6 @@ GenericConnectivityManagerImpl_NoThread<ImplClass>::_SetThreadDeviceType(Connect
     return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
 }
 
-template <class ImplClass>
-inline CHIP_ERROR GenericConnectivityManagerImpl_NoThread<ImplClass>::_GetSEDIntervalsConfig(
-    ConnectivityManager::SEDIntervalsConfig & intervalsConfig)
-{
-    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
-}
-
-template <class ImplClass>
-inline CHIP_ERROR GenericConnectivityManagerImpl_NoThread<ImplClass>::_SetSEDIntervalsConfig(
-    const ConnectivityManager::SEDIntervalsConfig & intervalsConfig)
-{
-    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
-}
-
-template <class ImplClass>
-inline CHIP_ERROR GenericConnectivityManagerImpl_NoThread<ImplClass>::_RequestSEDActiveMode(bool onOff)
-{
-    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
-}
-
 template <class ImplClass>
 inline void GenericConnectivityManagerImpl_NoThread<ImplClass>::_ResetThreadNetworkDiagnosticsCounts()
 {}

src/platform/nrfconnect/CHIPDevicePlatformConfig.h

@@ -216,6 +216,10 @@
 #define CHIP_DEVICE_CONFIG_THREAD_SSED CONFIG_CHIP_THREAD_SSED
 #endif // CONFIG_CHIP_ENABLE_SLEEPY_END_DEVICE_SUPPORT
 
+#ifdef CONFIG_NRF_WIFI_LOW_POWER
+#define CHIP_DEVICE_CONFIG_ENABLE_SED 1
+#endif // CONFIG_NRF_WIFI_LOW_POWER
+
 #ifndef CHIP_DEVICE_CONFIG_SED_IDLE_INTERVAL
 #ifdef CONFIG_CHIP_SED_IDLE_INTERVAL
 #define CHIP_DEVICE_CONFIG_SED_IDLE_INTERVAL chip::System::Clock::Milliseconds32(CONFIG_CHIP_SED_IDLE_INTERVAL)

src/platform/nrfconnect/wifi/ConnectivityManagerImplWiFi.cpp

@@ -173,6 +173,26 @@ void ConnectivityManagerImplWiFi::OnStationDisconnected()
     }
 }
 
+#if CHIP_DEVICE_CONFIG_ENABLE_SED
+CHIP_ERROR ConnectivityManagerImplWiFi::_GetSEDIntervalsConfig(ConnectivityManager::SEDIntervalsConfig & SEDIntervalsConfig)
+{
+    // For now Wi-Fi uses legacy power save mode that has fixed inactivity interval
+    SEDIntervalsConfig.ActiveIntervalMS =
+        chip::System::Clock::Milliseconds32(WiFiManager::kDefaultDTIMInterval * WiFiManager::kBeaconIntervalMs);
+    SEDIntervalsConfig.IdleIntervalMS =
+        chip::System::Clock::Milliseconds32(WiFiManager::kDefaultDTIMInterval * WiFiManager::kBeaconIntervalMs);
+    return CHIP_NO_ERROR;
+}
+CHIP_ERROR ConnectivityManagerImplWiFi::_SetSEDIntervalsConfig(const ConnectivityManager::SEDIntervalsConfig & intervalsConfig)
+{
+    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
+}
+CHIP_ERROR ConnectivityManagerImplWiFi::_RequestSEDActiveMode(bool onOff)
+{
+    return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
+}
+#endif
+
 ConnectivityManager::WiFiAPMode ConnectivityManagerImplWiFi::_GetWiFiAPMode(void)
 {
     /* AP mode is unsupported */

src/platform/nrfconnect/wifi/ConnectivityManagerImplWiFi.h

@@ -57,6 +57,12 @@ class ConnectivityManagerImplWiFi
     void OnStationConnected();
     void OnStationDisconnected();
 
+#if CHIP_DEVICE_CONFIG_ENABLE_SED
+    CHIP_ERROR _GetSEDIntervalsConfig(ConnectivityManager::SEDIntervalsConfig & intervalsConfig);
+    CHIP_ERROR _SetSEDIntervalsConfig(const ConnectivityManager::SEDIntervalsConfig & intervalsConfig);
+    CHIP_ERROR _RequestSEDActiveMode(bool onOff);
+#endif
+
     // Wi-Fi access point - not supported
     ConnectivityManager::WiFiAPMode _GetWiFiAPMode(void);
     CHIP_ERROR _SetWiFiAPMode(ConnectivityManager::WiFiAPMode val);

src/platform/nrfconnect/wifi/WiFiManager.h

@@ -135,6 +135,11 @@ class WiFiManager
         uint32_t mOverruns{};
     };
 
+#if CHIP_DEVICE_CONFIG_ENABLE_SED
+    static constexpr uint8_t kDefaultDTIMInterval = 3;
+    static constexpr uint8_t kBeaconIntervalMs    = 100;
+#endif
+
     CHIP_ERROR Init();
     CHIP_ERROR Scan(const ByteSpan & ssid, ScanCallback callback);
     CHIP_ERROR Connect(const ByteSpan & ssid, const ByteSpan & credentials, const ConnectionHandling & handling);